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mathn
mathn serves to make mathematical operations more precise in Ruby and to integrate other mathematical standard libraries.
Without mathn:
3 / 2 => 1 # Integer
With mathn:
3 / 2 => 3/2 # Rational
mathn keeps value in exact terms.
Without mathn:
20 / 9 * 3 * 14 / 7 * 3 / 2 # => 18
With mathn:
20 / 9 * 3 * 14 / 7 * 3 / 2 # => 20
When you require ‘mathn’, the libraries for Prime, CMath, Matrix and Vector are also loaded.
Copyright
Author: Keiju ISHITSUKA (SHL Japan Inc.)